GPT-5 Nano
Parameters
Undisclosed
Context Length
131K
Modality
Text
Architecture
Undisclosed
License
Proprietary
Release Date
13 Nov 2025
Knowledge Cutoff
May 2024
API Pricing (per 1M)
Input: $0.05 · Output: $0.40
Evaluation Benchmarks
Rank
#141
| Benchmark | Score | Rank |
|---|---|---|
StackUnseen | 0.604 | 20 |
Software Engineering | 0.35 | 36 |
Graduate-Level QA | 0.712 | 83 |
General Text | high 1338 | 136 |
Intelligence Index | high 0.13 medium 0.13 low 0.07 | 218 223 272 |
Summarization Archived | 0.954 | 4 |
Rankings
Overall Rank
#141
Coding Rank
#107
About GPT-5 Nano
GPT-5 Nano is OpenAI's ultra-compact, edge-ready language model built for rapid classifications, lightweight agents, and low-latency API tasks. It features tunable reasoning effort and native multimodal input processing over a 400K context window.
Technical Specifications
Architecture specifications are undisclosed for proprietary models.
Resources
About GPT-5
OpenAI's latest generation of language models featuring advanced reasoning capabilities, extended context windows up to 400K tokens, and specialized variants for coding, general intelligence, and efficiency. GPT-5 series introduces improved thinking modes, superior performance across benchmarks, and variants optimized for different use cases from high-capacity Pro models to efficient Nano models. Features native multimodal understanding, enhanced mathematical reasoning, and state-of-the-art coding abilities through Codex variants.